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Impact of industrial pollution on the population status of endangered Gangetic dolphin [Platanista gangetica] in the River Ganga in Bihar, India

100%

Kumar A.

Polskie Archiwum Hydrobiologii

1996

tom 43

nr 4

Helminth parasites of the Atlantic chub mackerel, Scomber colias Gmelin, 1789 from Canary Islands, Central North Atlantic, with comments on their relations with other Atlantic regions

80%

Costa G., Cavallero S., D’Amelio S., Paggi L., Santamaria M. T. G., Perera C. B., Santos M. J., Khadem M.

Acta Parasitologica

2011

tom 56

nr 1

Eleven parasite taxa were found infecting 68 Atlantic chub mackerel, Scomber colias Gmelin, 1789 from the Canary Islands, Central North Atlantic. The most abundant parasites were the gill monogenean Pseudokuhnia minor (P = 54.4%), larval anisakid nematodes (P = 11.8%) in the body cavity, a larval tetraphyllidean infecting bile ducts (P = 8.8%) and didymozoid digeneans infecting the gills (P = 7.4%). No correlation between fish length and abundance of infection with these parasites was found. Within the Atlantic, the comparison of present results with previous reports on the occurrence of parasites in this fish host, might suggest that there is more than one population unit of Atlantic chub mackerel in the Eastern Atlantic.

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A new kentriodontine dolphin from the middle Miocene of Portugal

80%

Lambert O., Estevens M., Smith R.

Acta Palaeontologica Polonica

2005

tom 50

nr 2

A nearly complete skull, a partial left scapula, five lumbar vertebrae, and some fragments of ribs of a medium−sized kentriodontid dolphin (Cetacea, Odontoceti) discovered in the middle Miocene of Setúbal Peninsula, Lower Tagus Basin, Portugal, are herein assigned to a new genus and species, Tagicetus joneti. Within the grade−level family Kentriodontidae, the new taxon is referred to the specifically and ecologically diversified subfamily Kentriodontinae, essentially defined by a well−developed posterolateral projection of the nasal. The elongated rostrum, the constriction of the asymmetric premaxillae at the base of the rostrum, the anteriorly elongated palatines, and the elevated vertex of T. joneti suggest closer affinities with the larger, more derived Macrokentriodon morani, from the middle Miocene of Maryland (USA). Among other features, T. joneti differs from the latter in having more numerous maxillary teeth and shorter zygomatic processes of the squamosals. Besides providing additional indications about the evolutionary trends within the Kentriodontinae, this occurrence constitutes the first record of the subfamily from the east coast of the North Atlantic based on a nearly complete skull. Considering their morphological diversity and wide geographic range, the Kentriodontinae may have constituted one of the dominant groups of Miocene oceanic dolphins.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Acta Parasitologica

1 Polskie Archiwum Hydrobiologii

1 Cavallero S.

1 Costa G.

1 D’Amelio S.

1 Estevens M.

1 Khadem M.

1 Kumar A.

1 Lambert O.

1 Paggi L.

1 Perera C. B.

1 Santamaria M. T. G.

1 Santos M. J.

1 Smith R.

1 2011

1 2005

1 1996

Wyniki wyszukiwania

Impact of industrial pollution on the population status of endangered Gangetic dolphin [Platanista gangetica] in the River Ganga in Bihar, India

Helminth parasites of the Atlantic chub mackerel, Scomber colias Gmelin, 1789 from Canary Islands, Central North Atlantic, with comments on their relations with other Atlantic regions

A new kentriodontine dolphin from the middle Miocene of Portugal